Oil burner apparatus



April 9, 1935.

o. scHRoEDER ET AL ,997,347

OIL BURNER APPARATUS Filed Oct. 1932 4 Sheets-Sheet l @mwi o. c. scHRoEp'ER Er AL OIL BURNER APPARATUS Filed oct. 2e, 1932 4sheetssheet 2 ve?? fons.'

April 9, 1935. o. c. scHRoEDER Er AL 1,997,347

y OIL BURNER APPARATUS 4A SheetsfSheet 3 Filed Oct. 26, 1932 given-Z076! 0550er croecZez' 5 05h Ze TEG/ffy,

April 9, 1935. C. c. scHRoEDER Er AL OIL BURNER APPARATUS Filed Oct. 26, 1932 4 Sheets-Sheet 4 Q Q 9 S 9999999 9 9 l Patented Apr. y 9, 1935 UNITED s rmrss PATENT OFFICE OIL BURNER APPARATUS Oscar C. Schroeder and Stanley Perry, Chicago,

Ill., assignors to Automatic Burner Corporation, Chicago, Ill., a corporation of Illinois Application October 26, 1932, Serial No. 839,685

7 Claims. (Cl. 126-45) Our invention relates to oil burner structures more particularly of the type comprising upwardly extending shells, commonly of cylindrical form and spaced apart, certain thereof being l perforated, and forming between them a combustion chamber, with a wick located at the bottom thereof for absorbing oil supplied thereto and which is ignited at the wick by the operator for the preliminary heating of the burner, the invention relating more especially to burners of this type which are located in the fire pots of ranges, stoves, or the like, and are commonly referred to as range burners.

15 Heretofore the construction of burner appaof the fuel is eiected by the introduction of a. torch or taper downwardly through the top of the burner structure which is not only an. awkward way of lighting the burner but is inconvenient and often results in the objectionable displacement of parts of the burner and is generally regarded in practice as an objection much desired to be overcome, this objection being more'pronounced in stoves, ranges, or the like, without 25 cover lids, and requiring the use of a torch or taper which, for the lighting of the burner, is

.introduced downwardly into the combustion chamber through a doorin the side of the stove or range. L

Our primary object is to provide for the simple and easy lighting of oil burners particularly those employing wicks and especially when installed in stoves, ranges, or the like, and without requiring the introduction of the lighting element into the Figure 4 is a similar view, the section being taken at the line- 4 on Fig. 2 and viewed inthe direction ofthe arrow.

Figure 5 is an enlarged fragmentary sectional view of one of the similar burners. the section being taken at the line 5 on Fig. 3 and viewed in r the direction of the arrow.

Figure 6 is a broken view in elevation of a ratus of this type has been such that the igniting combustion chambers through their tops andburner showing another embodiment of the invention. g

Figure '1 is a plan view of the burner assembly of Figs. 3 and 4,. y y

Figure 8 is a plan view of one of the similar 5 burner-heads ,of Fig. 7 with certain parts removed.

Figure 9 is an enlarged broken sectional view taken at theline 9 on Fig. 7 and viewed in the direction of the arrow.

Figure 10 is an enlarged broken sectional view taken at the line il! on Fig. 7 and viewed in the direction of the arrow.

Figure 11 is an enlarged plan view showing a modiiication of the burner assembly.

, Figure 12 is an enlarged broken developedsectional view taken at the line 12 on Fig. 8 and viewed in the direction of the arrow; and

Figures 13, 14 and 15, broken views in vertical sectional elevation of adjacent portions of the range and oil burner showing several-other em bodiments of the invention.

Referring to the construction shown in Figs. 1-5 and '7 to 10, inclusive, I6 represents, by way of example, arange generally of common construction and presentingl an elongated re vpot Il extending lengthwise across one end of the range and anoven I8 at the other end thereof and having a door i9, the outer side wall of the re pot I1 which extends across the adjacentend 30 of the range having an opening 20 controlled by a door 2i hingedly supported at its lower edge as represented at 22 and shown as provided with a substantially vertical batiie'plate 23 extending into the opening 20. 3

Located in the nre pot I1 isan oil burner shown as comprising two oil burner heads .24. alike in construction and which extend in a series lengthof the nre pot l1.

The burner heads are -shown as supported on a 40 plate 25 which, in turn, is supported at legs 26 on the bottom 2l of the re pot, the arrangement being such that the burner heads 2l extend substantially in the horizontal plane of the opening 20.

The burner heads 24 are shown as supplied with fuel oil at the rear thereof (viewing the structure as in Figs. 2 and 3). The oil may be supplied to the burner heads in any desirable 50 way and under any suitable control as for example as is commonly provided for in oil burning apparatus, the means shown for this purpose'com- Aprising piping 28 which would Vconnect with any suitable source of fuel-oil supply and presenting cation for' U. S. Letters Patent Serial No. 497,314,l

filed November 21, 1930, each involving a base ring 30 having upturned annular flanges 3| and 32 at its inner and outer peripheries, with its base portion upwardly deilected as represented at 33, except at the zone represented at'34 at which the oil-feed pipe discharges upwardly into the burner head, a ring 35 having depending an- -nular iianges 36 and 31 apertured at intervals around their lower edges and superposing the deiiected portion 33 and with the latter and the flanges 3| and 32 forming troughs shown as containing annular wicks 38 and 39, and four perforated cylindrical shells 40, 4|, 42 and 43 extending one within the other and spaced apart and telescoped with the ilanges 3| and 32 and the flanges 36 and 31 o! the ring 35, the shells 40 and 4| forming the side walls of an inner combustion chamber 44 and the shells 42 and 43 forming the side walls of an outer combustion chamber 45, the annular space between the shells 4| and 42 opening at its lower end to the atmosphere through an annular series of pipes one of which is represented at 46, whereby combustion supporting air is supplied through the shells 4| and 42 to the combustionchambers 44 and 45.

A cover plate representedat 41 extends over the annular chamber formed by the shells 4| and 42 and the combustion chamber 44 and is apertured as represented at 48 to render the top of the chamber 44 open.

The burner shown is started into operation by the operator igniting the oil on the outer Wicks 39 and supplied thereto through the pipes 29, the apparatus, to the end of permitting of the easy and ready lighting of the wicks, involving the provision of an opening 49 in the front side of each shell 43 adjacent its lower edge and thus substantially in line with the upper edge, of the wicks 39 through which the operator, reaching through the opening 20 in the fire-pot wall (assuming the door 2| to have been previously opened) inserts a match, or other suitable lighting means, for igniting the oil on the wick.

As will be understood, should the fuel used be highly volatile the. wicks may be dispensed with,

in which case the fuel would be ignited by ignit` ing the vapor rising therefrom, by any suitable lightig means introduced through the openlng The opening 49 is provided with a closure shown as in the form of a door 50, there being preferably interposed between the door 50 and the shell 43 a tubular casing 5| secured to the shell 43 and to which the door 50 is hinged at vits upper edge as represented at 52, the hinge 52 being positioned at such a distance from the shell 43 that in the swinging of the door 50 upwardly to open position it moves beyond dead center and thus remains in open position until swung by the operator out vof this position.

According to the embodiment of the invention illustrated in Fig. 6 the removable closure member for the opening49instead of being in the form of a hinged plate as in Figs. 3-5, is in the form of a slide which is represented at 53 and slides at its opposite vertical edges in vertical guideways formed by the angle plates 54 secured to the outer surface of the shell 41, the closure member 53 being provided with a projection 55 by the hand of the operator to facilitate the opening and closing thereof.

Where the burner heads are of such construction or size as to render it necessary or advisof the oil-inlets of each burner head. Thus, by-

way oi. example and as shown in Fig. 11, where two inlets for each burner head and shown at 56 are provided in diametrically opposed position, the closure-equipped opening for each burner head would be located midway between the inlets 56.

It may be here stated that the purpose of pro- .viding the opening 49 at4 a point diametrically opposed to the single oil-inlet as in the case of the construction shown in Figs. 3, 4 and '1 and midway between the oil-inlets of a burner head Where two such inlets are provided, as in the case of the construction of Fig. 11, is to provide for the igniting of the fuel at a point as far remote as possible from the oil inlet or oil-inlets as the ease may be, thereby insuring of the rapid propagation of the flame throughout the`circumference of the combustion chamber and the rapid establishment of uniform combustion conditions throughout the circumference of the burner, and which is of particular importance in constructions employing wicks as above described.

The invention also involves as to a certain phase thereof, further modifications of the closure means for the opening 49 in the outer shell of the burner head, whereby the operations of opening the door of the fire pot and the closure for the opening referred to, instead of being performed in succession by a series of operations, are effected by the single act of the operator in opening the fire pot door, Figs. 1 3, 14 and 15 illustrating embodiments of the invention in a structure of this character.

Referring to Fig. 13, the burner-head-opening 49 in the shell 43 is equipped with a casing represented at 51 and corresponding with the casing of the preceding figures of the drawings. The door in thisyconstruction is represented at 58, but instead of being hinged at its upper end is hinged at its lower end 59 to the casing 51 its upper end being pivotally connected at 60 with the upper end of a link 6I pivotally connected at its lower end at 62 with a stud 63 carried by the door 2| above its hinge 22,' the partition plate 23 being slotted at 64 to receive the link.

As will be understood from the foregoing, opening of the door 2| will operate, through the connection 6|, to swing the door 58 to open position to permit of the lighting of the wick, and swinging of the door 2| to closed position will close the door 58.

Figures 14 and l5 develop the feature of4 the automatic opening of the closure for the shellopening 49 by the act of opening the fire pot door, with a view to providing for thev tight closing of'this shell-opening regardless of slight variations in the dimensions of the parts of the range or stove and the relative positioning of the burner headsand the re pot door.

to'be engaged' In 14 the closure member for the shellopening and indicated at 65 is flexibly mounted on the inner end of a rod 68 slidably mounted in the door 2| which, in this particular construction, is provided with a hollow boss 61 and a separate plate 68 affording a socket 69 housing a coil spring I which surrounds the rod 8i and is confined between an end wall of the socket 89 and a collar Ii pinned to the rod 66. 'I'he spring operates to urge the closure member 85 toward the shell 43 and thus provides a certain amount of take-up or lost motion which insures the tight closing of the closure member 85 against the shell 43 at the opening therein in the closed position of the door 2|, f

In Fig. 15, the closure member for the shellopening and represented at 12 is provided on the upper end of a bell crank lever 'I3 fulcrumed at 14 on a bracket 15 depending from the base of the burner head, the lower end of the lever 13 being associated with means, shown as in the form of a weight 1S, for'normally holding the closure member 12 in closed position against the shell 43. A link 11 is pivotally connected at its upper end, as indicated at 1B, to the upper end of the bell crank lever 'I3 and engages at an elongated slot 'I9 in its lower end, with a pin 80 carried by a stud 8l on the re pot door 2i, The parts of the structure are so proportioned and arranged as shown that when the door 2i is in closed position the pin 80 will extend toward the rear end of the slot 18 in which position the weight 18 securely holds the closure member 12 in closed position, but in the opening movement of the door 2| the pin 80 will engage the forward end of the slot 19 thereby rocking the lever 'i3 against the action of the weight 'i6 and withdrawing the closure member 12 from closed position.

The claim of this application is not directed to any feature oi the burner structure independent of the provision of a lighter opening in the outer side wall of the burner, as the novel features of the burner construction, regardless of the provision of the lighter opening, form the subject of our pending application Serial No, 497,314, iiled November 21, 1930.

While we have illustrated and described certain particular embodiments of the invention, we do not wish to be understood as intending to limit it thereto as the same -may be variously modie and altered and the invention embodied in other forms of structure without departing from the spirit of the invention.

What we claim as new, and desire to secure by Letters Patent, is:

1. In combination, a stove, range, or the like, having a re pot containing an opening in a side wall thereof, a removable closure for said opening, an oil burner in said re pot and comprising a combustion chamber formed of inner and outer side walls, said outer side wall having an openingadjacent its lower end and in substantial -registration with the opening in the side wall of said re pot and through which openings means may be introduced to ignite fuel at the lower portion of said combustion chamber, a removable closure for said last-named opening, and means operatively connecting said closures together, for the purpose set forth.

2. In combination, a stove, range, or the like, having a fire pot containing an opening iny a side wall thereof, a removable closure for said opening, an oil burner in said fire pot and comprising a combustion chamber formed of inner and outer sidewalls, said outer side wall having an opening adjacent its lower end and in substantial registration with the opening in the side wall of said re pot and through which openings means may be introduced to ignite fuel at the lower portion of said combustion chamber, a removable closure for said last-named opening mounted independently of said iirst-named closure; and means operatively connecting said closures together, for the purpose set forth.

3. In combination, a stove, range, or the like, having a fire pot containing an opening in a side wall thereof, a removable closure for said opening, an oil burner in said fire pot and com prising a combustion chamber formed of inner and outer side walls, said outer side wall having an opening adjacent its lower end and in substantial registration with the opening in the side wall of said iire pot and through which openings means may be introduced to ignite fuel at the lower portion of said combustion chamber, a removable closure for said last-named opening, and means operatively connecting said closures together and aiording lost motion'between said closures, for the purposes set forth.

4. In combination, a stove, range, or the like, having a nre pot containing an opening in a side wall thereof, a removable closure for said opening, an oil burner in said re pot and comprising a combustion chamber formed of inner and outer side walls, said outer side wall having an opening adjacent its lower end and in substantial registration with the opening in the side -v a removable closure for said last-named opening,

carried by said mst-named closure.

5. Incombinatlon, a stove, range, or the like, having a fire pot containing an opening in a side wall thereof, a removable closure for said opening, an oil burner in said fire pot and comprising a combustion chamber formed of innervand outer side walls, said outer side wall having an opening adjacent its lower end and in substantial registration with the opening in the side wall of said fire pot and through which openings means may be introduced to ignite fuel at the lower portion of said combustion chamber, a removable closure for said last-named opening carried by said first-named closure and movable thereon, and means urging said second-named closure toward closing position.

6. In combination, a stove, range, or the like, having a fire pot containing an opening in a side. wall thereof, a removable closure for said opening, an'oil burner in said re` pot and comprising a-oombustion chamber formed of inner and outer side walls, said outer side wall having an opening adjacent its lower end and in substantial registration with the opening in the sideI wall of said fire pot and through which openings means may be introduced to ignite fuel at the lower portion of said combustion chamber, a removable closure for said last-named opening pivotally supported` and tending -to move toward closed position, and a lost-motion connection between said closures, for the purpose setv forth.

7. In combination, a stove, range, or the like, having a rire pot containing an opening in a side wall thereof, a removable closure for said opening, an oil burnerin said fire pot and comprising a combustion chamber formed of inner and outer side walls, said outer side wall having an opening adjacent its lower end and in substantial regsaid re pot and througlrwhich openingsmeans a. position in which said second-named closure may be introduced to ignite fuel at the lower is in closed position, and a lost-motion connecportion of said combustion chamber, a removtion between said first-named closure and said able closure for saidlast-named opening, a. bell bell crank lever, for te purpose set forth. crank lever vpivoted between its ends and carrying said second-named closure, means engaging OSCAR C. SCHROEDER.

said vbell crank lever and tending to move it to STANLEY PERRY.

CERTIFICATE 0F CGRRECTION.

Pan-,m No. 1,997,347. April 9, 1935. oscAR c. scHRoEDER and STANLEY PERRY.

It is hereby certified that the above numbered patent was erroneously issued to "Automatic Burner Corporation", as assignee of the entire interest in said invention whereas said patent should have been issued to Oscar C. Schroeder and the Automatic Burner Corporation, said corporation being assignee ofthe entire right of "Stanley Perry", as shown by the records of assignments in this office; and that the 'said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Office.

Signed' and sealed this 28th day of May, A. D. 1935.

Leslie Frazer (Seal) Acting Commissioner of Patents. 

